New module 'logbf'. * lib/math.in.h (logbf): New declaration. * lib/logbf.c: New file. * m4/logbf.m4: New file. * m4/math_h.m4 (gl_MATH_H): Test whether logbf is declared. (gl_MATH_H_DEFAULTS): Initialize GNULIB_LOGBF, HAVE_LOGBF, REPLACE_LOGBF. * modules/math (Makefile.am): Substitute GNULIB_LOGBF, HAVE_LOGBF, REPLACE_LOGBF. * modules/logbf: New file. * tests/test-math-c++.cc: Check the declaration of logbf. * doc/posix-functions/logbf.texi: Mention the new module.

Files:
tests/test-frexpl.c
tests/test-frexp.h
tests/minus-zero.h
tests/infinity.h
tests/nan.h
tests/signature.h
tests/macros.h
tests/randoml.c

Depends-on:
fpucw
isnanl-nolibm
signbit
float

configure.ac:

Makefile.am:
TESTS += test-frexpl
check_PROGRAMS += test-frexpl
test_frexpl_SOURCES = test-frexpl.c randoml.c
test_frexpl_LDADD = $(LDADD) @FREXPL_LIBM@